Space/Science — HabitableZone

Space/Science » in reply to For The Unobservant

re: For The Unobservant

Drawing a line at any size is completely arbitrary.

I agree.

The thing about deciding arbitrarily has to do with making things as simple as possible. Astronomy is a science that can be tought to very young children, provided simple things can be understood first.

Log in or register to post.

The whole thread (15 posts)